while a male is going down on a female, she pisses into his mouth and then he forcefully spits it back up inside of her, creating a soda like effect.
i just couldn't hold it in, so it was fountain soda time.
by memphisto December 03, 2003
Watered down soda dispensed from self-serve machines found in fast food restaurants. Tastes crappy.
Ugh, this soda tastes gross. Are you sure this isn't fountain soda?
by Tisteca February 25, 2007